Sattar B. Sadkhan and  Najlae Falah Hameed,  Proposed Developments of Elliptic Curve Digital Signature Algorithm.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    March 2010, vol. 38(2). 279 - 281
    [viewed 16 January 2022]. Available from: https://publications.waset.org/pdf/4584.